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Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2025-992391)

medium Nessus Plugin ID 280586

Synopsis

The Unity Linux host is missing one or more security updates.

Description

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-992391 advisory.

 In the Linux kernel, the following vulnerability has been resolved:

 fbdev: omapfb: Add 'plane' value check

 Function dispc_ovl_setup is not intended to work with the value OMAP_DSS_WB of the enum parameter plane.

 The value of this parameter is initialized in dss_init_overlays and in the current state of the code it cannot take this value so it's not a real problem.

 For the purposes of defensive coding it wouldn't be superfluous to check the parameter value, because some functions down the call stack process this value correctly and some not.

 For example, in dispc_ovl_setup_global_alpha it may lead to buffer overflow.

 Add check for this value.

 Found by Linux Verification Center (linuxtesting.org) with SVACE static analysis tool.

Tenable has extracted the preceding description block directly from the Unity Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update the affected kernel package.

See Also

http://www.nessus.org/u?9cd06551

http://www.nessus.org/u?94eefe4a

https://nvd.nist.gov/vuln/detail/CVE-2025-37851

Plugin Details

Severity: Medium

ID: 280586

File Name: unity_linux_UTSA-2025-992391.nasl

Version: 1.1

Type: local

Published: 12/30/2025

Updated: 12/30/2025

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 4.6

Temporal Score: 3.4

Vector: CVSS2#AV:L/AC:L/Au:S/C:N/I:N/A:C

CVSS Score Source: CVE-2025-37851

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 4.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Required KB Items: Host/local_checks_enabled, Host/UOS-Server/release, Host/UOS-Server/rpm-list, Host/cpu

Exploit Ease: No known exploits are available

Patch Publication Date: 12/30/2025

Vulnerability Publication Date: 5/5/2025

Reference Information

CVE: CVE-2025-37851